there is also their adaptation to all the situations because they are 65 kg. EMI-Aquatic Lifestyle Due to their adaptation, capybaras lead semi-aquatic lifestyles and spend much time in and near water. hick, Water-Repellent Fur Thick, water-repellent fur helps capybaras maintain their buoyancy and control body temperature when swimming.Social Behavior Capybaras are gregarious creatures that usually reside in groups of ten to twenty. this is the adaptation for the capybara and how they adapt.